| 释义 |
变压器biànyāqì利用电磁感应的原理来改变交流电压的装置,主要构件是初级线圈、次级线圈和铁心。在电器设备和无线电路中,常用作升降电压、匹配阻抗等。{transformer; device by which electromagnetic induction changes alternating voltage, consisting mainly of primary coils, secondary coils and an iron core; usu. used to increase or reduce voltage or for matched impedance} |